72 citations · 377 across the 26 of their papers we have counts for
26 papers
A cosmographic analysis using DESI-DR2 and strong lensing: I. Time-Delay measurements
Darshan Kumar, Deepak Jain, Shobhit Mahajan
Strong gravitational lensing time-delay measurements, together with the distance sum rule (DSR), offer a model-independent approach to probe the geometry and expansion of the unive…
A cosmographic analysis using DESI-DR2 and strong lensing: II. Distance Ratio measurements
Darshan Kumar, Deepak Jain, Shobhit Mahajan
The distance ratios derived from strong lensing systems, combined with complementary cosmological observations, allow for the study of cosmic expansion and curvature without assumi…
Study of Various Dark Matter Halo Profiles in Milky Way and M31 Galaxies within the Standard Cosmology Framework
Darshan Kumar, Nisha Rani, Deepak Jain +2
In this paper, we study the rotation curves of the Milky Way galaxy (MW) and Andromeda galaxy (M31) by considering their bulge, disk, and halo components. We model the bulge region…
Gamma Rays Bursts: A Viable Cosmological Probe?
Darshan Kumar, Nisha Rani, Deepak Jain +2
In this work, our focus is on exploring the potential of current GRB measurements to provide reliable constraints on cosmological model parameters at high redshift. This work is di…
Constraints on the Transition Redshift using Hubble Phase Space Portrait
Darshan Kumar, Deepak Jain, Shobhit Mahajan +2
One of the most significant discoveries in modern cosmology is that the universe is currently in a phase of accelerated expansion after a switch from a decelerated expansion. The r…
A non-parametric test of variability of Type Ia supernovae luminosity and CDDR
Darshan Kumar, Akshay Rana, Deepak Jain +3
The first observational evidence for cosmic acceleration appeared from Type Ia supernovae (SNe Type Ia) Hubble diagram from two different groups. However, the empirical treatment o…